|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Materials Science for High-Performance Permanent Magnets
||L10-FeNi Films with Coercivity in Excess of 1 kOe: A Combinatorial Sputtering Approach
||Georgios Giannopoulos, Andreas Kaidatzis, Gaspare Varvaro, Ruslan Salikhov, Vasilis Psycharis, Sara Laureti, Alberto Maria Testa, Michael Farle, Dimitris Niarchos, Margaritis Gjiokas
|On-Site Speaker (Planned)
L10-type magnetic compounds, including FeNi, possess promising technical magnetic properties of both high magnetization and large magnetocrystalline anisotropy energy and thus offer potential in replacing rare earth permanent magnets in many applications. In this work, we have employed a combinatorial sputtering process  in order to study the conditions of fabricating the L10-FeNi phase. We have used Si(100) wafers as substrates and we deposit FeNi on a variable stoichiometry Cu-Au-Ni buffer to match the lattice constants of the L10-FeNi. We perform magnetic properties and we find that the coercivity increases from approximately 0.3 kOe to 1 kOe as the Au content of the combinatorial interlayer decreases, without any further annealing optimization. A thorough structural and magnetic properties study will be presented.
ACKNOWLEDGEMENTS - Funding from the E.C. is acknowledged (Grant No. 318144, 280670, 686056-NOVAMAG and 691235-INAPEM). REFERENCES:  X.-D. Xiang, X.-D Sun et al, Science (1995) p. 1738